Kawase blur filter

For better performance and more stable large radius.
Also removing LensFilter given that performance was not
good enough for real time effects.

Test: visual (on Kawase and Gaussian)
Bug: 148614710
Change-Id: I81fd2cce030dafb8d87a7c65606632ac1ecfa113
diff --git a/libs/renderengine/Android.bp b/libs/renderengine/Android.bp
index 4c7b629..3d77059 100644
--- a/libs/renderengine/Android.bp
+++ b/libs/renderengine/Android.bp
@@ -59,7 +59,7 @@
         "gl/Program.cpp",
         "gl/ProgramCache.cpp",
         "gl/filters/BlurFilter.cpp",
-        "gl/filters/LensBlurFilter.cpp",
+        "gl/filters/KawaseBlurFilter.cpp",
         "gl/filters/GaussianBlurFilter.cpp",
         "gl/filters/GenericProgram.cpp",
     ],